Gas-blowpipe.



n.. snwnnzsn. one ammira.'

Arti-1012101 III-3D lo'. l, 1011.

1,046,1 12. Patented De@` s, 1912.

455515,'fspin'dle,'-1D; this spindle is projecting) from QFFIC'E!HEINRICH osjyonx, 1v. Y.

- eas-stomme.

gas pipe and air, or any other oxygenic gas.'

substance favorin combustion', 1 s forced through the centra ly locatedair pipe. Fuel gas and oiq/genous gas substances mixed bymeans-of'a-blowpipe produce a higher heat than one-'brought about by theusual ga-s burner, howevert-he heat generated by a single gas and air orgas and oxygen blowpixeis not sutlicient for many purposes.

he object ofl my invention is to' c'onstruct `a blowpipe with two ormore separate 'gasf andairexitsand to place these exits nsuch a positionlthat the driven flames meet in one point. The, heat of l;the blowinconcentrated upon one place an a quicker,

much higher heat is obtained than in' the single ending ordinary blowpiiMy improvement is anv a use of small sharp flames as well as intheconflagration voftwo o'rmore large blowing flames for heating purposes.

My improvements lead to a blowpe with one main tube for fuel gas Adiviing into branch tubes and one main tube for oxggenie gas dividing intobranch tubes; t e relative dis osition of the respective tubes as wellas t ie way of connecting the main tubes with the sources'of glas supplyand the shape of the end pipes a lowing for the termination inconverging direction are special points of novel character. The converg-'ing direction of two or more flames is of great value in solderingl')pipes, plates, or

articles which are held y a plaster compound in their relative positionduring the soldering process as the eat can be applied from more thanone side. l

The section'al'figure of the accompanying drawing illustrates a blow ipewith two gus exits the construction of which is as follows:

A fhandle screw, 'H, and a' setscrew, S, 'threaded i'n theiraxia'lcenters move upon "'faflock nipple, E, locking the main Atu e,'M,

Specification of Letterrlatent. Appiioauon aieaisibvember 6,191.1,2'serial so. usages.

flames. is

e.' vantage in the- Patenteinee.' 3, 1912.

posteriori The main tube, M, is perforated at t e points B and C andsurrounded by a siiu fittinfr sleeve, N, having tube projections andThese projecting. tubes I and Y communicate with the interior of themain tube whentheir interior openings are vplaced upon the 'perforationsof the main tube; this is simply done b turning the sleeve N around itslongitu inal axis until the opening of the tube I is adjusted .upon theopening, B, of the tube M, when at the same time the opening of the tubeY is directed upon the openin C of the tube M.

The letter U indicates t e main tube for oxygenic gas substances (air,nitrous oxid, oxygen, etc.) this main air tube U is closed toward-theanterior part of the main gas tube, M, by the fitting R, which separatesan anterior space from a posterior space in the main tube M.

The fitting -T divides the main as tube M' into branches, the fitting T2divides the vmain'aii' tube Uf into branches. The sub dividing-ends ofthe dividing fittings may be directed infganysuitable-angle to thedirectionf'offf'the main tube M. The branch .tubesfgor'f'air onotheroxygenic gas substances are thus distributed to therespectivebranchitubes for fuel as: The fuel gas enters-the blowpipe at' andleaves it at G and G. The air or oxygenic gas enters the -blowpipe at Aand leaves it at A and A2. l fir-.,lliirnin movements of the sleeve Nregu- -latethe istribution of as and air so that while the blowpi e ishel with 3rd, tith, and 5th fin er of the and, thumb and forenger contro the regulation of gas and air admission.

The handle screw, H, tightened upon the spindle, D, of the nipple, E, bythe set screw, S, makes a firm connection with the main tube, M, aroundvwhich the sleeve, N, rotates. The amount of gas, G, and air oroxygenous substance, A, to be passed through the respective tubes isdependent upon the osition of the openings of the tube, I an Y, over therforations,l3,:in l, C, of the main tube, M. hile a full supply andlarge flames are obtained by placing the internal openings of the gasand air su ply tubes, I, and, exactly over the perferations B, and, C adiminution of gas and air .supply and-small needle flames are obtainedin c angin the position of the tubes, I, and, .Y, from t epositionmentioned before by anaxial movement of thesleeve, N, to theright orv left. The bloivpi e is manipulated l- 4by holding the handlewit Br d,-4th' and 5th tin'gelof the hand while the'sleeve,` N, is

operated by thethumb and foretn eraf The curved branch tubes L and 2terminate' in .converging direction soV that: the blowing'lamesjneetinone point P. The curves'of the branch tubes'may be more or lessVpronounced so that the converging flames may meet at any desirableangle. Anyzdesired number of branches may be .ittedat the end of themain as tube.

vao

Having now fullydescribe myinvent-ion I claim.: v

-1.. Blowpipe for combined use-of fuel gas and .oxygenous vgassubstances consisting of one larger main tube for fuel gas divided Intoterminal branch tubes, and one smaller main I tube for oxy enous gassubstanceswhich In turn is divi ed into terminal. branch tubes, saidtubes: for oxygenous as substances suspended-,throughout in sai tubesfor fuel gas xn such manner that the larger main tube for *fuel lgscarries in its interior the smaller main tu for oxygenous gas and eachone oftthe terminal branch tubes for oxygenous and .-oxygenic gas4substances .havin gas is disposed in the interior of one of the for fuelgas carries in its interior the smaller main tubefor oxy enic gas andeach one of the'. terminal branc tubes for oxygenic gas is disposed inthe interior of one of the branch tubes for fuel as, the ipes of saidbranch tubes bent to al ow for t Ieir termination inta convergingdirection substantially as described and shown.

3. Blowpipe for combined use of fuel gas and oxygenic gas substanceshaving one larger main tube for fuel gas divided into terminal branchtubes, onel smaller main tube for oxygenic gas substances which in turnis divided into terminal branch tubes, and a sleeve surrounding thelarger main tube; the tubes for oxygenic gas substances suspendedthroughoutin the tubes for fuel as xn such manner that the larger maintu )e for fuel gas carries in its interior the smaller main tube foroxygenic as, and each one of the terminal branch tu es for oxy enic gasis disposed in the interior of one o the branch tubes for fuel gas, saidmain tube provided' -with an anterior lateral wall perforation for thepassage 'of fuel gas und a posterior lateral wall perforation for thepassage of oxygenic gas substances, said sleeve carrying a supply tubefor fuel gas and one for oxygenic gas substances, being attachedswivelmg around vt-he larger main tube in a osition intwhich the openingor closing o the gas ways` is elfectuated by turning the internalopenings of the sup ly tubes on to or ott` from the respective iva lperforations of the larger main tube,

HEINRICH SCHWEITZER..

Witnesses: Y.

PHILIP D.-RoLLHAUs, Joxm P. DAvIs.

Copies o! this patent may be obtained for ave cents noch, by addressingthe Commissioner o! Patents.

Washington, D. 0."

